I have a Red Cover Betty Crocker Cookbook that I received as a wedding gift in 1970 and it is the only cookbook I use. Mine is a solid red cover and it says it is the TEXT EDITION Betty Crocker's Cookbook. On the front cover it shows a circle divided into 6 wedges and pictures of cheese fondue, chocolate cake with white frosting, a salad, soup, roast, and cracker and cheese tray. The cookbook has a solid red cover, and is about 2 inches thick. When you open it, the pages are on metal rings that open to take the pages out.
I looked for the cookies you mentioned and my edition does not have them, so maybe the book you want was published before 1970? (I was born in 1951, so I am close to your mom's age)
On the back cover, it says that the cookbook I have is a revision to the BETTY CROCKER'S PICTURE COOKBOOK, a best seller for more than two decades. I suspect the one your then looking for is that.
Do a search on BETTY CROCKER'S PICTURE COOKBOOK, printed prior to 1970.
My cookbook was distributed by Webster Division, McGraw-Hill Book company, then it lists:
St. Louis, New York, San Francisco, Dallas, Toronto, London, Sydney, Mexico, and Panama.
Hope you can find the cookbook for your mom... the older versions are the BEST! Mine is falling apart, but I grab it all of the time for those old fashion recipes.